Jeffrey Elfenbein, D.O.
NPI 1043308695 · Internal Medicine Physician · Seaford, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Elfenbein, D.O. is a Internal Medicine Physician provider in Seaford, NY (NPI 1043308695).
Provider details
- NPI number
- 1043308695
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 196802 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,560 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 579 | $99 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 277 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 222 | $138 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 205 | $20 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 91 | $138 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 78 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 118 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 547 | 244 |
| Levothyroxine Sodium | 405 | 158 |
| Amlodipine Besylate | 348 | 148 |
| Losartan Potassium | 309 | 128 |
| Metoprolol Succinate | 250 | 107 |
| Rosuvastatin Calcium | 211 | 98 |
| Alprazolam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,950 across 90 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jeffrey Elfenbein's NPI number?
- Jeffrey Elfenbein's National Provider Identifier (NPI) is 1043308695, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Elfenbein's specialty?
- Jeffrey Elfenbein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Elfenbein located?
- Jeffrey Elfenbein's practice location on file with NPPES is 3921 Merrick Rd, Seaford, NY 11783-2823.
- What is Jeffrey Elfenbein's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Elfenbein is (516) 785-0660.
- Does Jeffrey Elfenbein accept Medicare?
- Jeffrey Elfenbein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Elfenbein's NPI active?
- Yes — Jeffrey Elfenbein's NPI (1043308695) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.